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Cheap flights from Detroit Metropolitan Wayne County Airport (DTW) to Porto (OPO)

DTW — OPO
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Detroit to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTW) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Popular in

June

Cheapest in

January

Average price

$739
Provider with most accurate pricing for Detroit Metropolitan Wayne County-Porto flight deals.
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Provider most trusted by Cheapflights users for Detroit Metropolitan Wayne County-Porto flights.
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Highest demand for flights based on searches. 18% potential increase in price ($232 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($52 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Compare providers for flights from Detroit to Porto

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Detroit to Porto in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Detroit Metropolitan Wayne County Airport-Porto flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Detroit Metropolitan Wayne County Airport-Porto flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Detroit Metropolitan Wayne County Airport-Porto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Detroit Metropolitan Wayne County Airport-Porto flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Detroit Metropolitan Wayne County Airport-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Detroit to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Detroit with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Detroit Metropolitan Wayne County Airport to Porto

What is the cheapest month to book a flight from Detroit Metropolitan Wayne County Airport to Porto?

Currently, September is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to Porto (average of $441). Flying from Detroit Metropolitan Wayne County Airport to Porto in June is currently the most expensive (average of $1,539). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated October 30, 2025.
Read reviews from past customers who have flown Delta, KLM, and United Airlines from Detroit Metropolitan Wayne County Airport to Porto. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,993 reviews

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,993 reviews
Delta
7.9
Good
7,993 reviews

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
KLM
7.7
Good
1,406 reviews
Delta
7.9
Good
7,993 reviews

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,998 reviews
Delta
7.9
Good
7,993 reviews

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from Detroit to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Detroit Metropolitan Wayne County Airport to Porto round-trip?

    Flying on Delta is currently your cheapest option to Porto, with prices starting at $441. Additional round-trip tickets that might be worth considering are offered by KLM and United Airlines, with the lowest prices starting at $568 and $739, respectively. Delta is 56% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Detroit to Porto that include hotel bookings?

    Yes. In addition to deals on Detroit to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Detroit to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Detroit to Porto.

  • Can I find deals for business class flights from Detroit to Porto?

    Yes. Cheapflights offers flight deals from Detroit to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Detroit Metropolitan Wayne County Airport to Porto?

    Currently, September is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to Porto (average of $441). Flying from Detroit Metropolitan Wayne County Airport to Porto in June is currently the most expensive (average of $1,539). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Aveiro
Arcos de Valdevez
Coimbra

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Alternative routes for Detroit to Porto

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Detroit to Porto

Discover the top 3 airlines that operate flights from Detroit to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$441Average$1,168FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$568Average$959FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$739Average$953FlexibilityNo cancel feeOn-time69%

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